README web version of /home/usg/OPS/MTS/readme_xml/readme_77075000

Principal Investigator Email Address

• schegerer@mpia.de

Estimated Total Execution Time (hours, including overheads)

• 8

General Description

• Our scientific objective is the observation of the inner region of the
   proposed TTauri objects with AMBER in order to study disc formation and disc geometry
   considering the effects of dust grains in the hottest part of circumstellar discs.
   This run consists of 6 OBs, 4 for targets, 4 calibrators.

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• It is madatory to schedule the observations in such a way that the targets
   are not closer than 15 degrees to the moon.

Time-Critical Aspects

• The given time window under the sidereal time tab only considers the elevation
   of the objects which should be higher than 30degrees.

Special Execution Requirements

• The scientific target AS205 is a 1.31''-binary. Both components should
   be observed, separately,  as it is defined in the OBs. The Southern component AS205S
   (=B-component, secondary) is located at a position angle of 213degrees, measured
   from North to East and seen from the Northern component (Ghez, Neugebauer &
   Matthews 1993, AJ, 106, 2005). The Northern component is the brighter object in
   V and K: V=12.39 and K=6.2, while the brightness of the Southern component is V=14.30
   and K=7.0, respectively (Koresko et al. 2002, AJ, 124, 1082). Furthermore, the fainter,
   Southern component is a spectroscopic binary, as well, with an separation of 8.5mas
   and a PA of 101degrees (measured from the brighter component; Koresko et al. 2002).
   The brightness ratio is 1.5 in R and 1.4 in I band. (Eisner et al., ApJ, 623, 952).
   We expect that both components can be resolved with AMBER. As an additional finding
   chart we added a sketch of the components' positions in the binary.
  We apply to use the laboratory tip-tilt system IRIS in order to stabilize the beams
   in the lab. We are conscious that the flux in H-band is then used for tip-tilt detection
   and are not available for the scientific beam.

Special Calibration Information

• The calibrators were chosen because of their proximity to the scientific
   targets. 
  
  Calibrator for HD143006 is
  HD143900: V=6.230, K=3.11, spect. type: K2/K3III, separation: 2.1degrees, obtained
   from CalVin-List
  
  Calibrator for AS205N and AS205S is
  HD143033: V=7.12, K=3.05, spect. type: M0III, separation: 6.1degrees, obtained from
   CalVin-List
  
  Calibrator for HBC 639 is 
  HD143900: V=6.23, K=3.11, spect. type: K2/K3III, separation: 7.1degrees, obtained
   from CalVin-List
  
  Of course, the Paranal Science Operation Team should have the right to exchange
   these suggested calibrators if it is necessary.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
 Category for each Observing Template ?

• N/A

Do all your finding charts comply with both the general and instrument-specific
 Phase 2 Web Pages ?

• YES

If you submitted OBs for standard stars, did you specify the magnitude
 and spectral type of all standard stars in the OBs ?

• YES

Have you included OBs for any calibrations that you need but which are
 not part of the Calibration Plan ?

• N/A

If you are observing Moving Targets, have you attached suitable ephemeris
 files to your OBs?

• N/A

If you have preferences which OBs should be executed first, did you make
 use of the User Priority field in the OBs ?

• N/A

If this is a run that requires coordinated observations with other facilities,
 did you give proper instructions in the Time-Critical Aspects Section ?

• N/A

Did you indicate for each science star OB the corresponding calibrator
 star OB (and vice versa) in the 'Instrument Comments' field ?

• YES

If you use calibrator stars which are not in the CalVin database, did
 you specify their characteristics in the README file and in the OBs ?

• N/A